I found the "issue"

With VFP 6, and later, we could willey-nilley the OCX toolbar imagelist thusly:

with oTB
.imagelist=oImageListCtl
....

in VFP 5 - the engine likes the "object" specifier:

with oTB
.object.imagelist=oImageListCtl.object
....

And, "Yes", MSComctlLib (SP6) will work with VFP 5 under the previous provisos!

And "yes", I missed you guys too